Carriage for type-writing machines.



A. LOPEZ.

CARRIAGE FOR TYPE WRITING MACHINES.

APPLIUATION FILED AUG. 13, 1912. I

1,12 44, Patented Jan.26,191-5.

2 SHEETs-SHEBT 1.

Patented M1126, 1915.

UNITED s'ra'I-ns "Paranor- ARTHUR LOPEZ, OF NEW YORK, N. Y., ASSIGNCR TOTHE HAMMOND 'I'YPEW'RITER CH. 015 NEW YORK, N. Y., A CORPORATION OF NEWYORK,

CARRIAGE FOR TYPE-WRITING MACHINES,

Specification of Letters iatent.

Patented Jan. 262,

Application filed August 13, 1912. Serial No. 714,837.

To all whom it may concern:

Be it known that I, An'rnon LOPEZ, a. citizen bt the United States ofAmerica, residing in New York, in the borough of Man hattan, county andSta e of New York, have invented certain new and useful improvements inCarriagesfor Type-Writing Machines, of' which the following is aspecification.

This invention relates to an improved carriage for typewriting-machineswhich is made noiseless in its motion by means of antifriction-rollersarranged at the points of support, and to which, by reducing thefriction between the carriage and its supports a free and easy motion isimparted; and the invention consists of a carriage for typewritingmachines which is provided at its lower part with a grooved longitudinalguide-rail, and antitrictioIrbaIIs interposed between the same and agrooved longitudinal supporting-rail, a retaining-roller at one sideengaging the rack-bar of the carriage, and antiiriction-rollers at theupper part of the frame bearing against the upper guide-rail of thecarriage.

The invention consists furtherot' certain details of construction whichwill be fully described hereinafter and finally defined in the claims.

In the accompanying drawings, Figure 1 represents a plan-view 07 atypewritingmachine and the paper-carriage of the same, partly insection, Fig. 2 represents an endelevation of the carriage and itssupporting parts, Fig. 3, a vertical transverse section on line 3, 3-,Fig. 1, Fig. 4, a detail end-elevation of the ball-bearing for the lowerpart of the carriage, drawn on a larger scale, Fig. 5, a verticaltransverse section of the upper antifriction-rollers of the carriage.also drawn on a larger scale, and Fig. 6, a detail plan-view of thelower supportingrail of the carriage and of the ball-bearings for thelower part or bottom of the carriage.

Similar letters of. reference indicate .corresponding parts throughoutthe several figures of the drawings.

Referring to the drawings, f represents the supporting-frame of atypewriting-machine, more especially of that type known as the Hammondtypewriting-machine. To the base-portion of the frame f are attachedbrackets b, which support in recesses b at their upper parts alongitudinal supportingrail 0 on which the lower pa?- or bottom of thecarriage is supported. .e rail 0 is rigidly secured into the recesses ofthe brackets 2') by means of pins 0" and clamp ing-serews as shown inFigs. and The supporting-rail 0 is provided with a longitudinal groovehavinginclined sides, on which latter rest the ball-bearings for thelower or bottom portion of the carriage, which are interposed betweenthe stationary supporting-rail c and the longitudinal bottom-rail d ofthe carriage (Z. The carriage (Z is made oi the usual construction withcircular arms (Z at the ends, a. longitudinal connecting-rod (Z at oneslde and a square guide-rail d at the upper end of the inner or oppositeside. The ends of the connecting-rod J and guide-rail d are attached bymeans of screw-nuts to the circular arms (Z at the ends of the carriage.T he carriage (Z is moved over its guideraiis by a steelband 6 which isconnected by a link 6 at its end with a pin a on a longitudinal guiderail 0", which latter is attached to the circular end-arms of thecarriage and moved along a beveled retaining roller (2* that turnsaround a pin 5 at the upper end of an upright arm 4: attached to thebase-frame f of the machine. The opposite end of the steel-banal c isapplied to a spring-drum g, the shaft of which turns in bearings oi thebottom-frame f of the carriage, the springdrum and steel-band impartingthe motion to'the carriage during the operation of thetypewriting-machine from the right to the left hand side of the machine,while the motion of the carriage toward the right is accom lished in thewell-known manner by a han -lever at the right-hand end of the carriage.Atthe upper ends of the circular arms d of the carriage c are supportedthe usual guide-rollers r, r by which the paper is guided to theprinting instrun'ientalities. The guide-rail (Z at the upper front-partof the carriageis guided along an antifriction-roller it which issupported on an angular bracket 71. attached to the upper portion 7" ofthe frame f or" the machine, and which takes up the friction with theside of the guide-rail, while a second antifriction-roller 71. which issupported on a fixed pin h of the upper portion 7" of the frame bearsagainst the opposite side of the upper guide-railof the carriage andtakes up the friction with the same. The anti &

friction-rollers 7i and h serve to guide the upper guiderail of thecarriage and take tip the friction of the same during its reciprocatingmotion. The bracket Ii is extended at its upper portion over thegraduated upper face of the guide-rail (Z as shown in Fig. 5, and formsby its pointed end an indicator 11: by which the position of thecarriage is properly located as it is moved from one side to the otherof the machine.

Two antifriction ball-bearings are provided for the lower part or bottomofthe carriage, and are (iomposed each ofan antifriction-ball i and aretainer 2' having an opening corresponding with the size of theantifrietion-ball. The retainers 2'. are formed of flat plates which areconnected by a longitudinal rod 2' as shown clearly in Fig. 6. The Lpperportions of the antifriction-balls z are received in a longitudinalgroove or raceway i having inclinedsides which raceway is located at thebottom of the guide-rail d of the carriage. Pins 2" at the ends of thesupporting-rail c prevent the moving of the carriage beyond the ends ofthe bottom guide-tail 0 when the carriage arrives at either end of'itsmotion. As the carriage is guided at its lower or bottom part by theantifrictiondaalls 2', and at its upper part by the antifriction-rollers71, 72. acting on. the upper guide-rail (Z While its rack-bar isretained bythe roller 6'; all the movable parts of the carriage areguided on the frame in a frictionless manner so that thereby aneasy-running and perfectly noiseless motion of the carriage is obtained.The other accessories of the typewritingmachine are of the usualconstruction and act in cooperation with the noiseless car riage in theusual manner.

I claim:

1. in a typeWriting-machine, the combi ed on the upper part. of theframe and natiom with the grooved supportinga'ail oi? thesupporting-frame, of a carriage having a bottom-rail guided byball-bearings on I said sil iporting-rail and having at its frontportion an upper guide-rail guided at its opposite sides byhorizontally-opposite roller-bearin on the supporting-frame.

2.- 1n typ'ewritingdnachine, he combination. with supporting-brackets onthe bottom-frame ol the machine and a longitudinal guide-rail supportedby the same, of a carriage provided at its lower or bottom part With alower or bottom guide-rail and at its front part with an upperguide-rail, antiiriction ball-bearings interposed between thesupporting-rail and the bottom gi'lide-rail, and antitriction-rollerssupport ed on the su )p .irting frame horizontally opposite each otherand ei'igaging the horizontally opposite sides of the'upper guidehar ofthe carriage.

3. In a typeWriting-machine, the combination, With .a lowersupportingqail supported in the bottom-frame of the machine, of acarriage provided with a lower or bottom guide-rail, a'raclobar and an.upper or top guide-rail at the front of the carriage, antifrictionball-bearings interposed between the supportingrail and the bottom guiderail of the carriage a retainingroller bearing on the 'raclebar, andhorizon tally opposite: antifrictionrollers su' p.ort- 5 formingcontactwith opposite sides of the upper guide-bar of the carriage.

in testimony, that I claim the foregoing as my invention, I have signedmy name in a presence of two subscribihg witnesses.

ARTHUR LOPEZ.

Witnesses:

' PAUL GOEPEL,

JOHN Mormon.

